I love my collection, but we are planning to move. Have found some books that I really don't need anymore, and those have gone to the local "friends" of the library. I have a lot left, though -- many more than I will ever use. Still love having them. My dh has a collection of over 3,000 classical records, so I don't feel *too* guilty over my collection of quilting books.
It is the quilt magazines that are worse for me. I have spent countless hours going through them page by page, marking pages I want to keep, giving the "friends" magazines that don't have at least one marker in them. Not sure there is enough time in my lifetime to go through all of them! This experience has finally convinced me to stop buying magazines. I even quit looking at them when I go out, so I won't be tempted to buy another one!